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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2015-05-21 15:11:15 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-05-22 11:25:56 +0800 |
| commit | a10f554fa7e09ad236cfa0bdabaf6549c0b073a4 (patch) | |
| tree | ffa28aaa4a45cfafabe679a6219a11dd404037a9 /crypto/Kconfig | |
| parent | 3c08fee7b5ce471a7114478ac8c6e546787bd8c2 (diff) | |
| download | lwn-a10f554fa7e09ad236cfa0bdabaf6549c0b073a4.tar.gz lwn-a10f554fa7e09ad236cfa0bdabaf6549c0b073a4.zip | |
crypto: echainiv - Add encrypted chain IV generator
This patch adds a new AEAD IV generator echainiv. It is intended
to replace the existing skcipher IV generator eseqiv.
If the underlying AEAD algorithm is using the old AEAD interface,
then echainiv will simply use its IV generator.
Otherwise, echainiv will encrypt a counter just like eseqiv but
it'll first xor it against a previously stored IV similar to
chainiv.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/Kconfig')
| -rw-r--r-- | crypto/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index 657bb82acd51..b7088d138723 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -227,6 +227,16 @@ config CRYPTO_SEQIV This IV generator generates an IV based on a sequence number by xoring it with a salt. This algorithm is mainly useful for CTR +config CRYPTO_ECHAINIV + tristate "Encrypted Chain IV Generator" + select CRYPTO_AEAD + select CRYPTO_NULL + select CRYPTO_RNG + help + This IV generator generates an IV based on the encryption of + a sequence number xored with a salt. This is the default + algorithm for CBC. + comment "Block modes" config CRYPTO_CBC |